<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-START> NOV-01-1999
<PERIOD-END> JUL-31-2000
<CASH> 3,353,000
<SECURITIES> 8,142,000
<RECEIVABLES> 1,248,000
<ALLOWANCES> (36,000)
<INVENTORY> 827,000
<CURRENT-ASSETS> 14,493,000
<PP&E> 4,926,000
<DEPRECIATION> (1,326,000)
<TOTAL-ASSETS> 28,537,000
<CURRENT-LIABILITIES> 1,461,000
<BONDS> 0
0
0
<COMMON> 69,000
<OTHER-SE> 26,893,000
<TOTAL-LIABILITY-AND-EQUITY> 28,537,000
<SALES> 4,450,000
<TOTAL-REVENUES> 4,450,000
<CGS> 1,478,000
<TOTAL-COSTS> 885,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 2,364,000
<INCOME-TAX> 884,000
<INCOME-CONTINUING> 1,480,000
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1,480,000
<EPS-BASIC> 0.21
<EPS-DILUTED> 0.20
</TABLE>